The Texas Instruments CD40175BE is a 4000B-series CMOS D-type flip-flop containing four positive-edge-triggered flip-flops with complementary outputs and a common master reset. Clock frequency reaches 14 MHz, and propagation delay is 120 ns at 15 V with a 50 pF load. The 16-pin DIP package (16-PDIP) fits standard through-hole prototyping and legacy board revs.
The 3 V to 18 V supply range is a key differentiator of the 4000B family. At 5 V the part works directly with TTL or 5 V CMOS logic without level translation. Propagation delay is specified at 120 ns with a 15 V supply and 50 pF load — expect longer delays at lower supply voltages, so budget margin for timing closure if running from a 5 V rail. Quiescent current is just 4 µA, so the part adds negligible static power draw in battery-backed or always-on sections. Output high/low current is 6.8 mA each, enough to drive a few CMOS gate inputs directly but not a heavy bus or LED without a buffer.
Sourcing is through the independent distribution channel — surplus, new-old-stock, or broker inventory. For new designs, consider a more modern CMOS logic family (e.g., 74HC or 74HCT series) that offers similar D-type functionality in a through-hole package.
The CD40175BE comes in a 16-pin PDIP (0.300" width, 7.62 mm body) for through-hole mounting. Board layout follows standard 0.1" pitch DIP footprint — no special pad geometry or thermal management needed for the 6.8 mA output current.